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Speedometer and tachometer cluster troubleshooting

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58 views 2 replies 3 participants last post by  lavarock46  
#1 ·
Speedometer hasn’t worked for a couple years, and tachometer stopped working today . She’s a 94 YJ 2.5 with 313k when the speedometer stopped working . May time for a new cluster?
 
#2 ·
check VSS wiring harness and adjustment (rotation) of VSS as depending on how it is rotated it moves speedo gear closer or further from gear that drives it to accommodate different diameter(tooth count) speedo gears

The tachometer drive signal comes from the pcm

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see pin 43 below

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